Reply With QuoteI had a tm battery do that once. Dealer claimed I had hooked charger up backwards. I hadn’t touched the connection lol
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Keeper
Trolling motor battery changed polarity.
Trolling motor would not run, checked battery and 1 had switched polarity, also my NOCO 3 bank charged lost all lights but still outputs voltage. Guess it's time for a charger and batteries.
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I had a tm battery do that once. Dealer claimed I had hooked charger up backwards. I hadn’t touched the connection lol
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That battery had the water boiled out of it but the other 2 were good checked the levels last month.
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Pretty much the only way for it to happen to a used battery is to completely drain the voltage and reverse the connection when charged. Really no other way.Originally Posted by BAMA S
Not the safest thing to do, but it is possibly to reverse it back again by complete discharge and recharge the correct way. You'll probably need a "non-smart" charger.
